Small values incorrectly converted to 0 (Q778)

The information in this article applies to: 
SIMCA 13
SIMCA-P+ 12.0.1
SIMCA-P+ 12
Symptoms: 

Values smaller than +0.000001 are displayed as 0 independent of range for that column.

Cause: 

The range for the column was not correctly investigated.

Status: 

This was fixed in SIMCA 14.

More Information: 

There is a function in SIMCA which displays 0 for values smaller than 0.000001 (1E-06) in plots and lists when such small values represent rounding error, that is, when the '1' in 0.000001 represents the 7th significant digit. But after triggering the replacement, all values smaller than +0.000001 are presented as '0' in the columns that follow.

Date modified: Jan 29, 2015
Article type: 
Problem